RE: SQL and commitment control

Unfortunately, that is what I have been stumbling upon during my research
but I was certain that there was a mode that got around that. I wonder what
I was working on in the past...or maybe it was some weird wishful thinking
dream that I got around it in the past.

I also found humor in the fact that your Wikipedia link discussed the issue
related to purchase orders.

I didn't want to have to deal with temp files / members but that might be my
only work around at this point (or a bunch of arrays to hold the data until
the "commit"). It's not a pretty solution either way.

Thanks everyone for your help on this and Happy New Year.

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Bruce
Vining
Sent: Wednesday, January 1, 2020 2:31 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: SQL and commitment control

You've got a problem and one that is not unique to the i. Google 'dirty
read' and you'll find this type of exposure exists everywhere. One write-up
is here <https://en.wikipedia.org/wiki/Isolation_(database_systems)> and
removing the possibility of dirty reads essentially requires broader locking
(delays, timeouts,...).

On Wed, Jan 1, 2020 at 2:20 PM <smith5646midrange@xxxxxxxxx> wrote:

That caused the STRSQL session to hang and eventually abend with a
record in use.

This can't be the answer because most of the other programs using the
files will not have any form of commitment control. I am only adding
it to this program so the users can cancel their changes and rollback.

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Sam_L
Sent: Wednesday, January 1, 2020 2:15 PM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: Re: SQL and commitment control

It may depend on how the interactive SQL is started, Does STRSQL
COMMIT(*CS)
make any difference?

Sam

On 1/1/2020 12:31 PM,
smith5646midrange@xxxxxxxxx wrote:

I have an RPGLE program that I adding commitment control. When I
insert records to my file but have not yet committed them, I can go
to a second session and using interactive SQL, I can see them. When
I do a rollback in the program, they disappear (as I would expect).

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Thanks and Regards,
Bruce
931-505-1915
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